Physicians and the marketplace.
D000574:American Medical Association; D004501:Education, Medical; D005251:Fees, Medical; D006268:Health Facilities / Q000706:statistics & numerical data; D006801:Humans; D007348:Insurance, Health; D008483:Medical Assistance; D010817:Physician-Patient Relations; D010820:Physicians; D011639:Public Opinion; D014481:United States; D000078329:Workforce